Terrestrial positioning system calibration
US9237417B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2014 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Jun 9, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/012
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Embodiments disclosed aggregate a plurality of crowdsourced measurement sets for antennas received from a plurality of Mobile Stations (MS) with a Base Station Almanac (BSA), based on a measurement location estimate and a measurement location uncertainty estimate associated with each measurement set. A map comprising a plurality of map layers may be obtained, where each map layer associates locations in the BSA with spatially variable Forward Link Calibration (FLC) values for the antenna derived from the updated BSA data, wherein each spatially variable FLC value is associated with a corresponding location in the updated BSA data. Map layers, which may also include multipath map and/or received signal strength layers, may be provided to MS′ as location assistance data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.